Bearing Spool Core

thingiverse

**Update 30/7-2018** I wanted a version that wouldn't require registration pins or gluing parts together, so I added files for a version using M3x10 screws and nuts. The countersunk holes are all hex shaped to keep the parts identical (less files to maintain) as well as deep enough to comfortably handle M3 nylon locking nuts without interfering with the threading. The updated file is only of the inner core, named Inner_Core_screws.stl. --- Having played around with the bearing core from MarcoZ76's EU version of the SpannerHands MK6 bearing remix (originally done by geakins), I decided on a more solid way to keep my bearings fixed within the roller core. Taking some basic measurements from my previous remix, I decided to go away from the smaller inner diameter of the bearing core, to accommodate the use of any bearing with an outer diameter of 32mm and width of 10mm. This model is designed to be printed twice and then glued together. Each half is made up of two parts: the outer and inner core, which screw together to lock the bearing in place within the bearing core. This design also made use of my 6201-2RS bearing model to make sure my clearance/tolerance was correct (as seen in the cross-section view). **Files included:** * STL-files for quick printing, already aligned for printing with zero support. * STEP-files for import into your favourite CAD software. * Fusion360 archive file so you get my full, messy history of making this model. While this was remade from the ground up, I'm still counting it as a remix of the two models mentioned in the remix info. This bearing core works well with them, but can fit on any rod that would fit inside the bearings used (12mm inner diameter in my case). Photos are of my final test prints (length cut down to save print time), your Outer Core's should be longer (and with chamfered edges). Remixes, comments and suggestions are very welcome. --- **Update July 22. 2018** After printing a full set of the files, I realized that the outer core was too long when I extruded it in Fusion360 I didn't take into account the offset I gave it for bearing spacing. It's been fixed now, and the files have been updated. The images might need to be updated in the future to reflect this change, as it was noticeable once I fixed it.